3 6 Ke·2025-12-26 07:11Core Insights - OpenAI has launched a special Christmas version of Codex, named GPT-5.2-Codex-XMas, which includes personalized upgrades while maintaining the same functionality as the standard GPT-5.2-Codex [1] - The holiday gift also features a reset of rate limits and an increase in usage caps to double the normal limits until January 1, allowing users to enjoy programming during the holiday season [3] Group 1: OpenAI's Codex Developments - The new Codex model is positioned as a more software engineering-focused tool, capable of long-term coding tasks and understanding complex project requirements [8] - Key enhancements include improved context understanding, cross-file and cross-module task execution, and a focus on Windows native toolchain optimization and .NET development [8] - The introduction of a "Skills" mechanism allows teams to reuse common engineering processes and commands, making Codex a more integral part of the engineering workflow [8] Group 2: Competitive Landscape - The competition among leading AI programming companies, including OpenAI, Google, and Anthropic, has intensified during the holiday season, with each company launching new features and promotional offers [10] - Anthropic has also announced a holiday promotion that doubles usage limits for Pro and Max subscription users from December 25 to December 31 [11] - Google has introduced significant upgrades to its Gemini series, including Gemini 3 and Gemini 3 Flash, aimed at enhancing programming capabilities and reducing costs [13]